Functional impairment. This will be measured by means of items on the Diagnostic Predictive Scale (DPS), which relates to significant impairment in different areas of functioning (APA, 2000), for example: functioning in school, social relations, family relations, activity outside school and dangerous behavior. The participants will be asked to grade, on a scale of 0 (not at all) to 5 (very much) the degree to which they have experienced impairment in functioning in these areas. The severity of functioning impairment will be computed as the sum of all the items.